Article
Chemistry, Physical
Marcia R. Goncalves, Karina P. M. Frin
Summary: This study reports the synthesis and characterization of mer-[Ir(ppy)(2)(Ipic)], investigating its electronic absorption spectra and electrochemical properties. The introduction of a halogen atom significantly affects the LUMO energy, while the emission behavior varies between room temperature and 77 K.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Applied
Chan Hee Ryu, Junseop Lim, Mingi Kim, Ilsup Shin, Jun Yeob Lee, Kang Mun Lee
Summary: Researchers have developed a blue-emitting iridium complex, IrTrz, based on a 1,2,4-triazole ligand, which exhibits stable blue emission, high thermal stability, and excellent electrochemical stability. Multilayer phosphorescent OLEDs using IrTrz as the blue emitter show low turn-on voltages and high external quantum efficiencies, with stable operational lifetimes exceeding 690 h.
Article
Chemistry, Analytical
Chuankai Lin, Xueliang Wang, Sang-Cuo Nao, Jing Wang, Jinbiao Liu, Dik-Lung Ma, Wei-Guo Zhu, Chung-Hang Leung, Wanhe Wang
Summary: In this study, an iridium(III) solvento complex (1) was developed for the luminogenic detection of dithiocarbamates. The probe showed high sensitivity and selectivity towards various dithiocarbamates including NDDC, SDDC, and APDC. It could detect dithiocarbamates in aqueous buffer, water, drink samples, and even in the presence of living cells.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Mozhgan Samandarsangari, Daria O. Kozina, Victor V. Sokolov, Anastasia D. Komarova, Marina V. Shirmanova, Ilya S. Kritchenkov, Sergey P. Tunik
Summary: In this study, new phosphorescent iridium complexes were synthesized with water-soluble and biocompatible properties. The major photophysical characteristics were determined by two cyclometallating ligands based on 2-pyridine-benzothiophene. The use of various diimine ligands influenced the quantum yield of phosphorescence and the sensitivity to oxygen. The complexes demonstrated low toxicity and good water solubility.
Article
Spectroscopy
Jingqi Liu, Xueliang Wang, Jing Wang, Chung-Hang Leung, Wanhe Wang
Summary: A new near-infrared luminescence probe for the detection of mitochondrial palladium ions in living cells is reported. This is the first near-infrared luminescence imaging probe for the detection of mitochondria Pd species in living cells, paving the way for studying subcellular distributions and related toxicity analysis of exogenous Pd species in living cells.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Biochemistry & Molecular Biology
Yuzhen Yang, Han Zhao, Weiqiao Zhou, Qin Zeng, Zihao Zhang, Junjie Jiang, Yongyang Gong, Yanqin Miao, Song Guo, Yuanli Liu
Summary: Two novel neutral phosphorescent iridium(III) complexes (Ir1 and Ir2) were designed and synthesized with high yields using 10,11,12,13-tetrahydrodibenzo[a,c]phenazine as the main ligand. The complexes exhibited bright-red phosphorescence, high-luminescence quantum efficiency, solvatochromism, and good thermostability. They were successfully utilized to fabricate high-efficiency red OLEDs, achieving promising performance in terms of current efficiency, power efficiency, and external quantum efficiency.
Article
Biochemistry & Molecular Biology
Ilya S. Kritchenkov, Vitaliya G. Mikhnevich, Victoria S. Stashchak, Anastasia Solomatina, Daria O. Kozina, Victor V. Sokolov, Sergey P. Tunik
Summary: The photophysical properties of a series of NIR-emitting iridium complexes were studied, and it was found that their characteristics are mainly determined by the properties of the metalating ligands. These complexes showed lower oxygen-quenching constants and acceptable cytotoxicity in physiological media. Additionally, they can be used for semi-quantitative measurement of oxygen concentration in living cells.
Article
Chemistry, Multidisciplinary
Julia R. R. Shakirova, Vadim A. A. Baigildin, Anastasia I. I. Solomatina, Reza Babadi Aghakhanpour, Vladimir V. V. Pavlovskiy, Vitaly V. V. Porsev, Sergey P. P. Tunik
Summary: A novel pH-responsive phosphorescent probe based on cyclometalated iridium(III) complex is reported, which is covalently conjugated with a water-soluble block-copolymer to prevent oxygen quenching and improve biocompatibility. The resulting polymeric nanoprobe shows a strong response of phosphorescence lifetime to pH variations in the physiological range. Cellular experiments confirm the applicability of this sensor for monitoring intra- and extracellular pH in cell cultures.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Mousumi Deb, Shrestha Roy, Nadira Hassan, Joy Sankar Deb Roy, Narendra Nath Ghosh, Pijush Kanti Chattopadhyay, Dilip K. Maiti, Nayan Ranjan Singha
Summary: This article reports the design and synthesis of a pH- and excitation-dependent multi-light emitting macromolecular ratiometric sensor for chromo-fluorogenic sensing. The performance of the sensor was investigated using various experimental methods, and it showed low detection limits for Fe(III), Cu(II), and Hg(II). This research is of great importance for pH-responsive sensing.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Todd A. Gillam, Chiara Caporale, Robert D. Brooks, Christie A. Bader, Alexandra Sorvina, Melissa Werrett, Phillip J. Wright, Janna L. Morrison, Massimiliano Massi, Doug A. Brooks, Stefano Zacchini, Shane M. Hickey, Stefano Stagni, Sally E. Plush
Summary: Luminescent metal complexes are valuable for cell imaging agents. Neutral Re(I) complexes offer a more attractive platform for the development of bioconjugated imaging agents. These neutral complexes have localized within the endosomal/lysosomal network, demonstrating their utility in developing bioconjugated cell imaging agents.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Analytical
Ying Wang, Guangxu Qu, Li Yin, Qingzhi Liu, Ruimei Yang, Lihua Lu
Summary: A ratiometric luminescent detection system based on silicon nanoparticles and iridium complex has been successfully constructed for sensitively detecting transcription factor in complicated biological systems. This platform can detect low concentrations of transcription factors in buffered systems and human serum.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Yongcheng Dai, Kexin Zhang, Xiaohan Yuan, Xiaobo Xie, Zixuan Zhan, Yi Lv
Summary: A novel iridium-based chemiluminescence probe (NIRIr-CL-1) with direct near-infrared (NIR) emission was reported, which was achieved through hypochlorous acid-initiated oxidative deoximation. To improve its biocompatibility and extend the imaging time, NIRIr-CL-1 was prepared as a nanoparticle probe (NIRIr-CL-1 dots) encapsulated in an amphiphilic polymer Pluronic F127. The results demonstrated that NIRIr-CL-1 dots showed good selectivity and sensitivity for visualizing hypochlorous acid even at a depth of 1.2 cm. The imaging of exogenous and endogenous hypochlorous acid in mice was successfully achieved, suggesting potential applications in biomedical imaging.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Han Zhang, Chunmei Liu, Guojie Yin, Chenxia Du, Bin Zhang
Summary: A series of new luminescent cycloplatinated(ii) complexes have been synthesized, showing structured monomeric emissions in CH2Cl2 solution with different quantum yields. The emissions of these complexes are mainly attributed to a mixed (LC)-L-3-MLCT state, as indicated by their crystal structural characteristics and TD-DFT calculations.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Rongji Zhu, Peiling Dai, Jun Yang, Jie Zhou, Jin Zhang, Kenneth Yin Zhang, Yonghua Li, Shujuan Liu, Kenneth Kam-Wing Lo, Qiang Zhao
Summary: In this study, dual-emissive iridium(III) complexes were developed to exhibit phosphorescence responses to copper(II) ions at a distinct wavelength from oxygen quenching. These complexes demonstrated colorimetric phosphorescence response in aqueous solutions under different copper(II) and oxygen conditions. In cellular imaging, the intensity and lifetime of green phosphorescence can be modulated by variation in oxygen concentration without affecting the response of red phosphorescence towards intracellular copper(II) ions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Nuray Altinolcek, Ahmet Battal, Mustafa Tavasli, Joseph Cameron, William J. Peveler, Holly A. Yu, Peter J. Skabara, Nicola J. Fairbairn, Gordon J. Hedley
Summary: A novel heteroleptic iridium(III) acetylacetonate complex was synthesized and found to exhibit good stability and high photoluminescence efficiency. The complex showed promising performance in organic light-emitting diodes, especially when combined with PVK and PBD.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2021)
Article
Engineering, Environmental
Xin Luo, Yi Qu, Yuqi Zhang, Yongquan Wu, Wei Yuan, Le Wang
Summary: The newly designed three ArNIs derivatives exhibit aggregation-induced emission phenomenon in aggregated states, with the potential to alter their behavior by changing end groups. They display different fluorescent properties in aqueous solutions and solid states, offering a new approach for designing AIE-active and fluorescent solid materials.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Wang Bingya, Guo Xiaomei, Liu Zuodong, Wu Yongquan, Hou Ji-Ting
Summary: A fluorescent probe ClO-1 was prepared in this study for the detection of endogenous HOCl, showing high selectivity, sensitivity, and real-time detection ability. Successfully used for bioimaging of endogenous HOCl in cells.
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
(2022)
Article
Chemistry, Physical
Mariia Ivanchenko, Vida Nooshnab, Alline F. Myers, Nicolas Large, Andrew J. Evangelista, Hao Jing
Summary: Researchers prepared colloidal monodisperse eccentric dual plasmonic noble metal-nonstoichiometric copper chalcogenide (Au@Cu2-xSe) hybrid hetero-nanostructures with controllable semiconductor shell size and two tunable localized surface plasmon resonances (LSPRs). The experimental and computational results demonstrated the superior catalytic activity and higher rate constants of Au@Cu2-xSe in photocatalysis, attributed to the enhanced electromagnetic field strength arising from efficient plasmonic coupling under the excitation of two LSPRs.
Article
Chemistry, Inorganic & Nuclear
Jing Li, Yulian Zhu, Hui Xu, Teng-Fei Zheng, Sui-Jun Liu, Yongquan Wu, Jing-Lin Chen, Yong-Qiang Chen, He-Rui Wen
Summary: This article introduces a novel multifunctional lanthanide metal-organic framework (Ln-MOF) for chemical sensing. The authors synthesized a new fluorescent material JXUST-11, and demonstrated its application in the detection of Al3+ and Ga3+ ions, including identification through fluorescence enhancement and color change. Additionally, the authors developed a portable film based on JXUST-11 for the detection of these ions, and showed its potential in living cell applications.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Andrew J. Evangelista, Mariia Ivanchenko, Hao Jing
Summary: The work demonstrates photocatalytic hydrogen evolution from ammonia borane under near-infrared laser irradiation using novel core-shell upconversion-semiconductor hybrid nanostructures, showing significantly higher activities compared to bare upconversion nanoparticles. The efficient charge separation and generation of reactive species promote hydrogen production, paving the way for on-board hydrogen generation from ammonia borane under near-infrared illumination for green energy applications.
Article
Chemistry, Analytical
Lina Shangguan, Jing Wang, Xiaoli Qian, Yongquan Wu, Yi Liu
Summary: A ratiometric chemdosimeter NRH-O has been designed in this study, which can monitor the variation of endogenous HClO content in living cells and detect the upregulation of HClO induced by drug toxicity, providing a new method for evaluating liver and kidney injury.
ANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Hongyang Zhang, Zhao Chen, Longzhi Zhu, Yongquan Wu, Yuqing Xu, Shuming Chen, Wai-Yeung Wong
Summary: Researchers have achieved high external quantum efficiency in near-infrared OLEDs by designing new near-infrared phosphorescent Ir(III) complexes. The introduction of a cyano unit and a conjugated group improves the position of the emission spectrum and the rate of radiative decay.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Analytical
Yulian Zhu, Xiaomei Guo, Xiao Ma, Kai Liu, Yuting Han, Yongquan Wu, Xun Li
Summary: In this study, a rare earth upconversion luminescent (UCL) nanocomposite probe UCNP-PEG-NOF1 was designed and synthesized for the UCL detection of Cys. The probe exhibited good selectivity and high sensitivity for Cys, with a low background signal and strong penetration ability.
Article
Chemistry, Multidisciplinary
Xingxing Li, Qiang Liao, Ying Yang, Xiaomei Guo, Dingfeng Xu, Ming Li, Yongquan Wu, Junmei Wang, Yibao Li
Summary: This study developed biodegradable microcapsules derived from discarded parenchyma cells of moso bamboo, which exhibited excellent encapsulation efficiency and pH-responsive release behavior. This provides a sustainable alternative for microencapsulation and enables the utilization of bamboo wastes.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Analytical
Ke Wang, Yu-Lian Zhu, Teng-Fei Zheng, Xin Xie, Jing-Lin Chen, Yong-Quan Wu, Sui-Jun Liu, He-Rui Wen
Summary: Researchers have synthesized a lanthanide-based metal-organic framework with excellent stability in water, acid/base environments, and solvents. This compound can be used as a pH fluorescence sensor and has the capability to detect L-arginine and L-lysine in aqueous solutions.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Environmental
Yi-Ru Chen, Xiu Wang, Wei Xu, Kai Liu, Wei -Bin Qiu, Yongquan Wu, Yibao Li, Wei-Rong Cui
Summary: In this study, a hydroquinone-functionalized 3D covalent organic framework (DHBA-TAPM) with unique redox activity and high-affinity hexameric binding sites was developed for selective capture and in situ reduction of radionuclide uranium. The DHBA-TAPM showed significantly higher adsorption capacity and kinetics compared to other similar adsorbents under highly acidic conditions. This work provides a facile strategy for the synthesis of functionalized 3D covalent organic frameworks and opens up the application of redox-active 3D covalent organic frameworks in environmental remediation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Analytical
Yongquan Wu, Xiaomei Guo, Xiao Ma, Yulian Zhu, Yi Liu, Hong Zeng
Summary: This study designed and synthesized a near-infrared (NIR) xanthene derivative IFU-1 as a frequency up-conversion luminescence (FUCL) probe for detecting biothiols. The probe IFU-1 exhibited high selectivity for biothiols and enhanced FUCL signals in response to them. Additionally, it had extremely low detection limits for different biothiols, which were about 10 times lower than the detection limits of traditional excitation methods.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Engineering, Chemical
Yongquan Wu, Kai Liu, Yi-Ru Chen, Wei Xu, Shun-Hao Zeng, Wei-Rong Cui
Summary: This study reports a redox-active conjugated microporous polymer (DHBA-HAH) with favorable six-membered chelate ring for the extraction of uranium from highly acidic wastewater. The unique structure of DHBA-HAH allows for efficient uranium extraction through chemisorption and reduction processes, with imidazole and hydroxyl functional groups playing a crucial role. This research provides a promising approach for the development of high-performance uranium adsorbents with redox activity and expands the application of functionalized CMPs in removing radioactive contamination from strongly acidic environments.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Mariia Ivanchenko, Hao Jing
Summary: The study focused on the influence of plasmonic coupling effects between different components in Au NRs@Cu2-xSe nanostructures on their characteristics. Anisotropic Au@Cu2-xSe hetero-nanostructures with well-controlled design and optical properties were obtained, resulting in the superimposition of LSPR bands of gold and copper selenide in the NIR region, leading to superior photocatalytic properties of the nanostructures.
NANOSCALE ADVANCES
(2022)
Article
Chemistry, Multidisciplinary
Mariia Ivanchenko, Andrew J. Evangelista, Hao Jing
Summary: Catalytic transformations under light irradiation are demonstrated through excitation of localized surface plasmon resonances in noble metal-based nanoparticles. By utilizing galvanic replacement reaction, Pd-rich plasmonic nanorattles with increased dimensions and enlarged cavity sizes are successfully fabricated in this study.